No, it will not be a wise decision to ban tourism as the disaster had struck and to repair the damage the government needs money, and as you have told  30% of Uttrakand's economy comes from tourism, the government mustn't ban the tourism because it is in need of funds.
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pl can u extend d answer as i needed to be abt a page...........?? please a small favour

of course no but what is the reason for the idea of banning tourism